Robotics and motor control
12 CPR quadrature feedback for closed-loop motor speed and position control, 3.5–18 V supply.
Engineering inference
Pololu
Pololu #3542 Romi encoder pair kit: two dual-channel Hall sensor boards + two 6-pole magnetic discs for the Romi chassis mini plastic gearmotors, 12 counts per motor-shaft revolution (~1440 per wheel revolution), 3.5–18 V, open-drain A/B outputs (external pull-ups), 20 × 18.7 mm, 0.1″ pads with low-profile headers.
3542Development boardFacts about the complete product. Unknown values remain open design questions.
Guidance to help you shortlist. The basis is shown for each recommendation.
12 CPR quadrature feedback for closed-loop motor speed and position control, 3.5–18 V supply.
Engineering inferenceSolders to the Romi chassis gearmotors and gives about 1440 counts per wheel revolution for wheel odometry and speed control.
Engineering inferenceNo-load speed, rated performance and stall limits describe different operating points. A stall specification is not a continuous operating rating.
Supply range 3.5–18 V.
From $9.95 at www.pololu.com. Prices are observed unit prices before tax and shipping.
20 × 18.7 × 5 mm. A STEP model is available for enclosure fit checks.
Every value in this record is traced to a source — 2 documents including the board and chip datasheets — with the page and table cited per value. Unknowns are left explicit, never guessed.